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NVIDIA GeForce GT 755M SLI

NVIDIA GeForce GT 755M SLI

The NVIDIA GeForce GT 755M SLI is a high-end DirectX 11-compatible graphics solution for laptops, consisting of two GeForce GT 755M. Each card has a 28nm GK107 core based on the Kepler architecture. With SLI, each card usually renders a single frame (AFR mode). Therefore, it may suffer from micro stuttering in low fps ranges of 30fps. This happens because of different timespans between two frames (e.g. irregular delays between sequential frames).

Compared to the GeForce 750M, the 755M respectively 755M SLI is combined only with GDDR5 graphics memory and clocked slightly higher.

Architecture

The GK107 Kepler core offers two shader blocks, called SMX, each with 192 shaders for a total of 384 shader cores that are clocked at the same speed as the processor core. Although more shader cores are available in the Kepler architecture as compared to the Fermi design, the Kepler shaders are expected to be up to two times more power efficient. However, due to the missing hot clock of the shader domain, two shaders of a Kepler chip are as fast as one shader of a Fermi chip, even though Fermi shaders are clocked at twice the speed.

PCIe 3.0 is now supported by the mobile Kepler series and GPU Boost 2.0 can automatically overclock the card if the laptop cooling system allows it. This feature is available on any notebook with a graphics card of the 700M series.

Performance

Thanks to the slighly higher clocks, the GT 755M SLI is somewhat faster than the former GT 750M SLI and performs similar to a single GeForce GTX 770M or GTX 680M. Depending on the game, there can be big differences here, depending on how well SLI scales in a particular case. Overall, most current games (as of 2013) can be played fluently in 1080p and (very) high settings.

Features

The feature set includes support for up to 4 active displays. Furthermore, high resolution monitors of up to 3840x2160 pixels can now be connected using DisplayPort 1.2 or HDMI 1.4a if available. HD-Audio codecs, such as Dolby TrueHD and DTS-HD, can be transmitted via bitstream mode through the HDMI port.

The 5th generation PureVideo HD video processor (VP5) (also integrated in the GK107 core) offers hardware decoding of HD videos. Common codecs such as MPEG-1/2, MPEG-4 ASP, H.264 and VC1/WMV9 are fully supported up to 4K resolutions while VC1 and MPEG-4 are supported up to 1080p. Two streams can be decoded in parallel for features such as Picture-in-Picture. Another feature is the inclusion of a dedicated video encoding engine similar to Intel QuickSync that can be accessed via the NVENCI API.

Power Consumption

The power consumption of the GeForce GT 755M SLI doubles compared to a single 755M, reaching about 100 W. As a result, the Nvidia GPU is only suited for larg gaming notebooks.

ManufacturerNVIDIA
GeForce GT 700M Series
GeForce GT 755M SLI 768 @ 980 MHz2x 128 Bit @ 5400 MHz

GeForce GT 750M SLI

768 @ 967 MHz2x 128 Bit @ 2000 - 5000 MHz

GeForce GT 755M

384 @ 980 MHz128 Bit @ 5400 MHz

GeForce GT 750M

384 @ 967 MHz128 Bit @ 2000 - 5000 MHz

GeForce GT 745M

384 @ 837 MHz128 Bit @ 1800 MHz

GeForce GT 740M

384 @ 810 - 980 (Boost) MHz64/128 Bit @ 1600 - 1800 MHz

GeForce GT 735M

384 @ 575 - 889 (Boost) MHz64 Bit @ 1800 - 2000 MHz

GeForce GT 730M

384 @ 725 MHz64/128 Bit @ 1800 - 2000 MHz

GeForce GT 720M

96 @ 625 - 938 (Boost) MHz64 Bit @ 1800 - 2000 MHz
CodenameN14P-?
ArchitectureKepler
Pipelines768 - unified
Core Speed *980 MHz
Memory Speed *5400 MHz
Memory Bus Width2x 128 Bit
Memory TypeGDDR5
Max. Amount of Memory2x 2048 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Power Consumption2x ~50 Watt
Transistors2x 1300 Million
technology28 nm
FeaturesGPU Boost 2.0, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizelarge
Date of Announcement01.11.2013
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark (2013) - Fire Strike Standard Graphics 1920x1080
0% 100%
min: 4106      avg: 4106 (22%)     median: 4106 (22%)     max: 4106 Points
3DMark (2013) - Fire Strike Standard Score 1920x1080
0% 100%
min: 3584      avg: 3584 (27%)     median: 3584 (27%)     max: 3584 Points
3DMark (2013) - Ice Storm Standard Graphics 1280x720
0% 100%
min: 136274      avg: 136274 (18%)     median: 136274 (18%)     max: 136274 Points
Unigine Heaven 3.0 - DX 11, Normal Tessellation, High Shaders 1920x1080
0% 100%
min: 53      avg: 53 (31%)     median: 53 (31%)     max: 53 fps
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 5673      avg: 5673 (25%)     median: 5673 (25%)     max: 5673 points
3DMark 11 - Performance 1280x720
0% 100%
min: 5398      avg: 5398 (30%)     median: 5398 (30%)     max: 5398 points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 21102      avg: 21102 (41%)     median: 21102 (41%)     max: 21102 Points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 20627      avg: 20627 (43%)     median: 20627 (43%)     max: 20627 Points
3DMark 06
0% 100%
min: 18996      avg: 18996 (50%)     median: 18996 (50%)     max: 18996 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 71.5      avg: 71.5 (38%)     median: 71.5 (38%)     max: 71.5 fps
SPECviewperf 11 - Maya 1920x1080
0% 100%
min: 10.62      avg: 10.6 (9%)     median: 10.6 (9%)     max: 10.62 fps
SPECviewperf 11 - Lightwave 1920x1080
0% 100%
min: 17.89      avg: 17.9 (22%)     median: 17.9 (22%)     max: 17.89 fps
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 55.52      avg: 55.5 (45%)     median: 55.5 (45%)     max: 55.52 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailled information on the benchmark results, click on the fps number.

Assassin´s Creed IV: Black Flag
med. 1366x768
53.9  fps      Compare
high 1366x768
48.7  fps      Compare
ultra 1920x1080
29.7  fps      Compare
» With all tested laptops playable in detail settings high.
Call of Duty: Ghosts
med. 1366x768
73  fps      Compare
high 1366x768
55.1  fps      Compare
ultra 1920x1080
32  fps      Compare
» With all tested laptops playable in detail settings high.
Battlefield 4
med. 1366x768
95.1  fps      Compare
high 1366x768
71  fps      Compare
ultra 1920x1080
31.9  fps      Compare
» With all tested laptops playable in detail settings high.
F1 2013

F1 2013

2013
med. 1366x768
101  fps      Compare
high 1366x768
90  fps      Compare
ultra 1920x1080
69  fps      Compare
» With all tested laptops playable in detail settings ultra.
Saints Row IV
med. 1366x768
68.9  fps      Compare
high 1366x768
57.2  fps      Compare
ultra 1920x1080
40.7  fps      Compare
» With all tested laptops playable in detail settings ultra.
Dota 2

Dota 2

2013
med. 1366x768
91.3  fps      Compare
ultra 1920x1080
66.2  fps      Compare
» With all tested laptops playable in detail settings ultra.
GRID 2

GRID 2

2013
med. 1366x768
109.9  fps      Compare
high 1366x768
99.4  fps      Compare
ultra 1920x1080
47.1  fps      Compare
» With all tested laptops playable in detail settings ultra.
Metro: Last Light
med. 1366x768
57.6  fps      Compare
high 1366x768
37.5  fps      Compare
ultra 1920x1080
24.7  fps      Compare
» With all tested laptops playable in detail settings high.
BioShock Infinite
med. 1366x768
124.8  fps      Compare
high 1366x768
113.8  fps      Compare
ultra 1920x1080
45.3  fps      Compare
» With all tested laptops playable in detail settings ultra.
Tomb Raider
med. 1366x768
164.6  fps      Compare
high 1366x768
122.1  fps      Compare
ultra 1920x1080
51  fps      Compare
» With all tested laptops playable in detail settings ultra.
Crysis 3

Crysis 3

2013
med. 1366x768
63  fps      Compare
high 1366x768
55.9  fps      Compare
ultra 1920x1080
20.6  fps      Compare
» With all tested laptops playable in detail settings high.
Far Cry 3

Far Cry 3

2012
med. 1366x768
86.1  fps      Compare
high 1366x768
63.1  fps      Compare
ultra 1920x1080
21.7  fps      Compare
» With all tested laptops playable in detail settings high.
Hitman: Absolution
med. 1366x768
52.6  fps      Compare
high 1366x768
44.7  fps      Compare
ultra 1920x1080
30.6  fps      Compare
» With all tested laptops playable in detail settings high.
Guild Wars 2
high 1366x768
41.9  fps      Compare
ultra 1920x1080
36.3  fps      Compare
» With all tested laptops playable in detail settings ultra.